Home / 2,588.33-3,879.79-1,127.09

Finding the Fourth Proportional to 2,588.33, 3,879.79 and 1,127.09

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Solution

The fourth proportional to 2,588.33, 3,879.79 and 1,127.09 is: 1,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.33 : 3,879.79 = 1,127.09 : x
  2. Step 2: Convert to fraction form
    2,588.33/3,879.79 = 1,127.09/x
  3. Step 3: Cross multiply
    2,588.33x = 3,879.79 × 1,127.09
  4. Step 4: Simplify right side
    2,588.33x = 4,372,879.39
  5. Step 5: Solve for x
    x = 4,372,879.39/2,588.33
  6. Step 6: Final answer
    x = 1,689.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.